Pontiac Grand Prix Forums : Grandprix

is it possiable to put a series III supercharged engine and tranny in a 2000gp and if so would it be hard? or my other idea would be to get supercharged Series II engine and tranny and put it in my 2000gp?

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2000GP-GT|CC|8%tint|Exhaust DRT|CAI| Ordering KV5 and 10000k HID.

You'd need to use a Series II throttle body, fuel rail, and wiring harness/PCM. Injector connectors will probably be required for the new injectors, as well as a lot of PCM programming to make the engine function properly. You'd have a Series III engine, but have to run it with Series II electronics.

The tranny will require a 03+ PCM (you'd need to get one from an Impala/Monte with the 3.8L) because of internal electronic differences that came long in that year. I'd stick with 04-05 Impala/Monte PCMs just to be safe. Also, there are some tap-shift 4T65Es out there with Series III 3800s, so I'd be careful not to get one since it is different than the regular 4T65Es and might be incompatible.

If you really want to do this, I'd source the engine and tranny separately to avoid any incompatibility issues with the electronics.

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2004 Impala LS - got some mods sold!!!
2009 Subaru Impreza WRX STI

NAIOA moderator Still Imp'n, just in a different Imp.